Sigma warns of aberration bug affecting some of its lenses on Canon DSLRs

We have found that some SIGMA interchangeable lenses for CANON are not fully compatible with EOS 6D Mark II, EOS 77D, EOS Rebel T7i, EOS Rebel SL2.

When certain lenses are attached to these cameras and the “Lens aberration correction” function on these cameras is set to “Enable” for Live View shooting, an error would occur.
Please set the “Lens aberration correction” function of the cameras to “Disable” when using SIGMA’s interchangeable lenses for CANON.

In addition, please also refer to other notice below, related to the usage of EOS mount SIGMA lenses on Canon cameras.

[Phenomenon]
When the lenses listed below are used on EOS 6D Mark II, EOS 77D, EOS Rebel T7i, EOS Rebel SL2 and the “Lens aberration correction” function on the camera is set to “Enable” for Live View shooting, an error would occur.

[Products concerned]

SIGMA 30mm F1.4 DC HSM | Art

SIGMA 35mm F1.4 DG HSM | Art

SIGMA 30mm F1.4 EX DC HSM

SIGMA 50mm F1.4 EX DG HSM

SIGMA 85mm F1.4 EX DG HSM

[Usage Notice for customers who are using EOS mount SIGMA lenses on CANON cameras]
When using the SIGMA lenses for CANON, “Peripheral illumination correction”, “Chromatic aberration correction”, “Diffraction correction” as well as “Distortion correction” from the “Lens aberration correction” function of the camera are not supported. Therefore, we recommend you to set them to “Disable”.
If those functions are set to “Enable”, the performance of the lenses may not be accurate.